394? Mr. Weaver on the Structure of the South of Ireland, 
I. General Table of classes and orders in both the Wenlock 
and Eifel limestones, with the number of species distinct 
and common in each. 
Wenlock limestone. 
Total 
Species. 
Distinct 
Species. 
Species com- 
mon to both 
limestones. 
Distinct 
Species. 
Total 
Species. 
Eifel limestone. 
Crustacea 
15 
14 
1 
9 
10 
Annelida 
Mollusca. 
1 
1 
— 
3 
3 
Heteropoda... 
2 
2 
— 
3 
3 
Cephalopoda.. 
10 
9 
1 
16 
17 
Gasteropoda.. 
8 
7 
1 
22 
23 
Conchifera 
27 
18 
9 
69 
78 
Crinoidea 
14 
12 
2 
19 
21 
Polvparia 
58 
30 
28 
24 
52 
Sedis incertse.... 
2 
2 
— 
2 
2 
137 
95 
42 
167 
209 
II. Table of genera and species common to the Wenlock and 
Eifel limestones. 
Crustacea, Trilobite 1 Calymene raacrophthalma. 
Mollusca. 
Cephalopoda 1 Orthoceras annulatum. 
Gasteropoda 1 Euomphalus carinatus. 
CoNCHiFERA 9 Terebratula Wilsonii (Terebratula 
lacunosa, Dalm.) 
Spirifera trapezoidalis ; S. crispa, 
Dalm., (S. octoplicata, Sow.) j S. 
radiata. 
Atrypa reticularis (Terebratula 
prrsca, Schlot.), 
A. aspera(T erebratul a aspera, Sehlot, 
including T. explanata, Schlot.). 
A. galeata. 
Leptaena euglypha, Leptsena de- 
pressa. 
Crinoidea 2 Cyathocrinites rugosus. 
Actinocrinites moniliformis. 
PoLYPARiA 28 Aulopora serpens, A. tubaeformis. 
Glauconome disticha. 
Fenestella antiqua, Lons, (Gorgonia 
antiqua. Gold/.). 
Fenestella prisca, Lons. (Retepora 
prisca. Gold/.). 
Discopora? favosa, Lons, (Cellepo- 
ra favosa. Gold/.) . 
Discopora antiqua, Lons. (Cellepora 
antiqua. Gold/.). 
Ceriopora granulosa. 
affinis. 
